(19)
(11) EP 0 314 133 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.01.1990 Bulletin 1990/01

(43) Date of publication A2:
03.05.1989 Bulletin 1989/18

(21) Application number: 88117931.1

(22) Date of filing: 27.10.1988
(51) International Patent Classification (IPC)4: F04C 29/10, A62C 3/00
(84) Designated Contracting States:
DE FR GB

(30) Priority: 28.10.1987 JP 270173/87

(71) Applicant: HITACHI, LTD.
Chiyoda-ku, Tokyo 100 (JP)

(72) Inventors:
  • Matsuda, Hiroyuku
    Shimizu-shi (JP)
  • Torigoe, Taisuke
    Shimizu-shi (JP)
  • Yoshihara, Shiro
    Shimizu-shi (JP)

(74) Representative: Finck, Dieter, Dr.Ing. et al
Patentanwälte v. Füner, Ebbinghaus, Finck Mariahilfplatz 2 - 3
81541 München
81541 München (DE)


(56) References cited: : 
   
       


    (54) Oil cooled fluid compression apparatus


    (57) The oil cooled fluid compression apparatus has a safety device for stopping the operation of the apparatus when burning is caused in an oil separator (8) of the apparatus. The safety device includes an auxiliary piping (23) for allowing a part of a compressed fluid to flow therein from the apparatus, and a sensor unit (13) provided in the auxiliary piping (23) and adapted to detect a gas in the compressed fluid, which gas changes in density when burning is caused in the oil separator (8), and to stop the operation of the apparatus.







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